1 /* $OpenBSD: citrus_none.c,v 1.2 2010/08/03 11:23:37 stsp Exp $ */ 2 /* $NetBSD: citrus_none.c,v 1.18 2008/06/14 16:01:07 tnozaki Exp $ */ 3 4 /*- 5 * Copyright (c)2002 Citrus Project, 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #include <sys/types.h> 32 33 #include <errno.h> 34 #include <string.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <stddef.h> 38 #include <wchar.h> 39 40 #include "citrus_ctype.h" 41 #include "citrus_none.h" 42 43 _CITRUS_CTYPE_DEF_OPS(none); 44 45 size_t 46 /*ARGSUSED*/ 47 _citrus_none_ctype_mbrtowc(wchar_t * __restrict pwc, 48 const char * __restrict s, size_t n, 49 void * __restrict pspriv) 50 { 51 /* pwc may be NULL */ 52 /* s may be NULL */ 53 /* pspriv appears to be unused */ 54 55 if (s == NULL) 56 return 0; 57 if (n == 0) 58 return (size_t)-2; 59 if (pwc) 60 *pwc = (wchar_t)(unsigned char)*s; 61 return (*s != '\0'); 62 } 63 64 int 65 /*ARGSUSED*/ 66 _citrus_none_ctype_mbsinit(const void * __restrict pspriv) 67 { 68 return (1); /* always initial state */ 69 } 70 71 size_t 72 /*ARGSUSED*/ 73 _citrus_none_ctype_mbsrtowcs(wchar_t * __restrict pwcs, 74 const char ** __restrict s, size_t n, 75 void * __restrict pspriv) 76 { 77 int count = 0; 78 79 /* pwcs may be NULL */ 80 /* s may be NULL */ 81 /* pspriv appears to be unused */ 82 83 if (!s || !*s) 84 return 0; 85 86 if (pwcs == NULL) 87 return strlen(*s); 88 89 while (n > 0) { 90 if ((*pwcs++ = (wchar_t)(unsigned char)*(*s)++) == 0) 91 break; 92 count++; 93 n--; 94 } 95 96 return count; 97 } 98 99 size_t 100 /*ARGSUSED*/ 101 _citrus_none_ctype_wcrtomb(char * __restrict s, 102 wchar_t wc, void * __restrict pspriv) 103 { 104 /* s may be NULL */ 105 /* ps appears to be unused */ 106 107 if (s == NULL) 108 return 0; 109 110 *s = (char) wc; 111 return 1; 112 } 113 114 size_t 115 /*ARGSUSED*/ 116 _citrus_none_ctype_wcsrtombs(char * __restrict s, 117 const wchar_t ** __restrict pwcs, size_t n, 118 void * __restrict pspriv) 119 { 120 int count = 0; 121 122 /* s may be NULL */ 123 /* pwcs may be NULL */ 124 /* pspriv appears to be unused */ 125 126 if (pwcs == NULL || *pwcs == NULL) 127 return (0); 128 129 if (s == NULL) { 130 while (*(*pwcs)++ != 0) 131 count++; 132 return(count); 133 } 134 135 if (n != 0) { 136 do { 137 if ((*s++ = (char) *(*pwcs)++) == 0) 138 break; 139 count++; 140 } while (--n != 0); 141 } 142 143 return count; 144 } 145